Planetary gear transmission systems or components – Differential planetary gearing – Spur gear differential
Patent
1994-09-01
1995-10-31
Look, Edward K.
Planetary gear transmission systems or components
Differential planetary gearing
Spur gear differential
F16H 142
Patent
active
054624975
ABSTRACT:
A parallel-axis differential comprising a housing rotatable in forward and reverse drive directions about a common axis of rotation of a pair of drive shafts, first and second side gears positioned within the housing for receiving ends of the respective drive shafts for rotation therewith about the common axis, first and second pairs of planet gears positioned within the housing in engagement with the side gears for rotation about respective axes that extend parallel to the common axis of rotation, each of the pairs of planet gears including a leading planet gear member and a following planet gear member, a first toggle having first and second bearing surfaces and being mounted in the housing between the first and second pairs of planet gears, the first bearing surface of the first toggle rotationally supporting the leading member of the first pair of planet gears, the second bearing surface of the first toggle rotationally supporting the following member of the second pair of planet gears, the first toggle being pivotable about a first pivot axis that extends parallel to the planet gear axes for transmitting a gear reactionary force between the leading and following members of the first and second pairs of planet gears; and, an apparatus for controlling the first toggle and for controlling the amount of the gear reactionary force transmitted between the leading and following members of the first and second pairs of planet gears.
REFERENCES:
patent: 5122101 (1992-06-01), Tseng
patent: 5244440 (1993-09-01), Ichiki et al.
Larson James A.
Look Edward K.
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